Does the array in Java have the length () method? String does not have a lenght () method?

There is no length () method in the array in Java, so the lengths of the array can be used in the array.

int [] arr={ 1 , 2 , 3 , 4 , 5 };

intlength=arr.length;//求数组的长度

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String has the length () method, which is used to find the lengths of the strings

String  str= "Hello" ;

intlength=str.length()； //求字符串的长度

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1 The Length property in Java is said for an array, for example, you declare an array, and you want to know the length of the array is used to this property.

2 the Length () method in Java is for string strings, and the length () method is used if you want to see how long the string is.

The size () method in 3.java is said for a generic collection, and if you want to see how many elements the generic has, call this method to view it!

If there are elements, they start from 1;

Does the array in Java have the length () method? String does not have a lenght () method?